The High Standard Model H-D Military serial numbers generally fall between 150,000 and 345,000, produced from late 1945 to 1951. Because High Standard used a single serial number sequence for most models, the date depends on where your number sits in that master list. 📅 Production Timeline & Ranges
The "H-D Military" was the final and most common evolution of the hammer-equipped H-D series. Model Variant Serial Range (Approx) Key Features H-D (Early) ~40,000 – 110,000 1940–1942 Commercial, deep blue finish. USA Model H-D ~110,000 – 150,000 1943–1946 Military "U.S. Property" marks, Parkerized. H-D Military ~150,000 – 345,000 1945–1951 Post-war, "Military" on slide, adjustable sights.
Note: The "Military" in the post-war name refers to the style (aimed at target shooters) rather than active combat service. 🔍 Identifying the "Best" Models
Collectors and shooters often prioritize models based on these specific traits:
OSS "MS" Variants (114,000 – 117,000): These are the rarest and most valuable. They were integrally suppressed for the Office of Strategic Services (OSS) during WWII.
Early Post-War (1946–1947): Often preferred for their high-luster blued finish before production shifted toward higher volume.
The "U.S. Property" Mark: If your pistol has "U.S. PROPERTY" stamped on the frame, it is a genuine military surplus training piece, which typically commands a higher value than civilian models. 🛠️ Key Tips for Owners
Ammo Warning: Only use Standard Velocity .22 LR ammo. High-velocity rounds can eventually crack the slide or frame on these vintage pistols.
Magazine Condition: These guns are notoriously sensitive to magazine lip geometry. If you have feeding issues, check the High Standard Mag Lips first.
Value: Standard shooters in good condition range from $250–$450, while "mint" or rare military-marked pieces can exceed $700+.
💡 Key Point: The "H" in the model name stands for Hammer, distinguishing it from the internal-hammer Model B. If you'd like, I can help you:
Pinpoint the exact year if you provide the first few digits of your serial number.
Find replacement parts or original manuals for this specific model. Compare the HD to the Model B or later Supermatic series. The High Standard HD 22 Pistol - Guns.com
The High Standard (Hi-Standard) Model HD Military is widely regarded by collectors as one of the best .22 caliber training and target pistols ever produced
. Originally developed as a civilian target pistol, its robust design and ergonomic similarity to the
led to its adoption by the U.S. military during World War II. History & Military Adoption
High Standard became a primary supplier of .22 Long Rifle training pistols for the U.S. Army and Navy during WWII. Transition from Model B : Initially, the military used the hammerless , but it was replaced in 1942 by the
because the HD's external hammer and grip angle were ergonomically closer to the service M1911. The OSS Connection : A specialized version, the , was equipped with an integral suppressor and used by the Office of Strategic Services (OSS) and later the for clandestine operations. Serial Numbers & Production Dates histandard model hd military serial numbers best
Because High Standard produced these pistols for both military contracts and civilian markets, serial numbers are the most reliable way to identify a true "military" specimen. This Old Gun: Hi-Standard Military Model B-US 18 Jun 2012 —
The Hi-Standard Model H-D Military is a classic rimfire pistol prized by collectors for its accuracy and build quality. Finding the "best" serial number usually means finding a piece from the peak production years (1945–1950) or a rare military-contract variant. 🎖️ The "Best" Serial Ranges to Look For
When searching for a high-quality Model H-D Military, collectors generally prioritize three specific categories: 1. The Military Contract Models (Low Serial Numbers)
The Look: Marked "U.S. PROPERTY" on the left side of the frame.
The Appeal: These were actually issued to the military for training. Serial Range: Often found in the 110,000 to 150,000 range.
Why they are best: They hold the highest historical value and have a distinct parkerized or high-polish finish depending on the specific contract. 2. The Early Post-War "Golden Era" (1946–1948) The Look: Excellent deep bluing and fine machining. Serial Range: Roughly 150,000 to 250,000.
Why they are best: After WWII, High Standard used their refined manufacturing processes to create some of the smoothest actions in the company's history. 3. The Lever-Letter Prefix Rarities
Towards the end of production, serial numbers moved into different formats.
Collectors often hunt for "clean" numbers or those with specific factory markings that indicate a special order or experimental batch. 🔍 How to Identify Your Production Year
If you have a serial number and want to check its "pedigree," use this general timeline: Serial Number Range Approx. Year Significance 110,000 – 145,000 Peak WWII military production 150,000 – 200,000 1946–1947 High-quality civilian transition 210,000 – 310,000 1948–1949 Most common "shooter" models 320,000 – 340,000 Final production runs ✅ Collector Tips for Buying
Check the Magazine: Original "pinned" magazines are rare and can be worth $100+ alone.
Inspect the Slide: Look for a matching serial number stamped on the interior of the slide to ensure it is original to the frame.
Finish is King: A Model H-D Military with 95%+ original bluing in the 200,000 range is often a better "value" than a beat-up military-stamped version.
If you have a specific serial number you'd like me to look up, I can try to give you: The exact year it was shipped
Information on whether it was a military or civilian shipment The current market value based on its rarity What is the serial number you're looking at?
The High Standard (Hi-Standard) Model HD Military is a pinnacle of American rimfire engineering. Produced primarily during and immediately after World War II, it remains a favorite for collectors and target shooters alike.
If you are looking to identify, date, or value one of these pistols, understanding the serial number sequences and model variations is essential. Here is everything you need to know about the Hi-Standard Model HD Military serial numbers and what makes certain units the "best" for your collection. The Evolution of the Model HD Military The High Standard Model H-D Military serial numbers
Before diving into the numbers, it’s important to distinguish the "HD Military" from its predecessor, the "Model HD."
Model HD: Produced for the U.S. government during WWII (often marked "Property of U.S.").
HD Military: The civilian version produced starting in late 1945. It featured an external safety and an exposed hammer, making it a rugged, reliable choice for training and plinking. Deciphering Hi-Standard HD Military Serial Numbers
High Standard’s serial numbering can be a bit complex because the company often used overlapping blocks for different models. However, for the HD Military, the following timeline is generally accepted by collectors: Serial Number Range (Approx.) Early Post-War (1945–1946) 150,000 – 170,000 Transition period; some parts may vary. Peak Production (1946–1949) 170,000 – 315,000 The "classic" HD Military era. Late Production (1950) 315,000 – 345,000
Final runs before the transition to the "Letter" series (e.g., Sport King).
Where to find the serial number:On most HD Military models, the serial number is stamped on the front of the grip strap. You may also find the last three or four digits of the serial number stamped on the underside of the slide (visible when disassembled) to ensure the factory-fitted parts stayed together. What Defines the "Best" HD Military?
When collectors search for the "best" Model HD Military, they are usually looking for a combination of three factors: 1. The "USA" Property Markings
While the "HD Military" is technically a civilian model, some early units were built using frames intended for military contracts. Units that feature crisp "U.S. Property" roll marks—even if they were sold commercially—command a significant premium. 2. Barrel Length and Balance
The HD Military was offered in two main barrel lengths: 4.5-inch and 6.75-inch.
The 6.75-inch is widely considered the "best" for target shooting due to the longer sight radius and front-heavy balance.
The 4.5-inch is preferred by collectors who want the "holster gun" aesthetic and better portability. 3. Original Condition and Finish
The "best" specimens retain their original deep blue finish. High Standard was known for high-quality polishing. If you see a model with a "Parkerized" (matte grey/green) finish, verify the serial number; if it falls in the civilian range, it may have been refinished, which lowers the value. Collectors’ Tips: What to Look For
The Magazine: Original High Standard magazines are notorious for being finicky. An HD Military with its original, two-tone tempered magazine is much more valuable than one with a modern triple-k replacement.
The Grips: Look for the checkered walnut grips. Early models had finer checkering, while later models became slightly coarser.
The Take-down Lever: Ensure the take-down lever on the right side of the frame moves smoothly. These pistols were hand-fitted, and a seized lever can indicate internal corrosion or damage. Summary for Buyers
If you find a High Standard Model HD Military with a serial number in the 150,000 to 250,000 range, you are looking at the "Golden Era" of this pistol’s production. These years represent the best of American manufacturing—all steel, no plastic, and hand-fitted precision.
Whether you are an investor or a weekend shooter, the HD Military is a "must-own" rimfire. Its weight and trigger pull are often compared favorably to modern target pistols costing three times as much. Red Flags: What to Avoid When hunting for
Do you have a specific serial number you'd like me to look up, or are you trying to determine the current market value of a pistol you found?
High Standard (Hi-Standard) Model HD Military is a classic .22 caliber rimfire pistol renowned for its historical significance and exceptional build quality. Originally developed during WWII for marksmanship training, it remains a favorite among collectors and "plinkers" for its reliability and precision. Historical Background The "H" in HD stands for , distinguishing it from earlier internal-hammer models. Military Origins
: During WWII, the U.S. government purchased thousands of Model HDs for training recruits. Clandestine Use : The OSS (CIA predecessor) used a suppressed variant, the USA Model H-D MS
, for covert missions. A suppressed Hi-Standard was famously found with U-2 pilot Gary Powers when he was shot down over the Soviet Union in 1960. Production Era : The "HD Military" was manufactured primarily between 1946 and 1955
, though earlier HD models without the "Military" designation date back to 1940. Serial Number Identification
Serial numbers are the most reliable way to date your pistol, though they were not always shipped in perfect numerical order. Standard Serial Range
: Most HD Military pistols fall within the late 100,000 to 300,000+ range. MS (Silenced) Range
: The highly rare suppressed military variants typically fall between 114,000 and 117,000 Best Resources John Stimson’s Hi-Standard Information
: Widely considered the "gold standard" for serial number research based on original factory records. Book Resource High Standard Firearms History 1932 to 1984 Connecticut by John G. Curry is the most authoritative print guide. Key Specifications .22 Long Rifle (LR) Straight blowback, single-action with external hammer Barrel Lengths 4.5 inches or 6.75 inches (heavy target style) 10-round detachable box with heel release Adjustable rear for windage and elevation Collector's Perspective High Standard Model H-D Military
When hunting for the "histandard model hd military serial numbers best," avoid these common pitfalls:
This is the most significant pitfall for collectors reviewing serial numbers on these pistols.
During WWII and post-war surplus sales, Hi-Standard (and the military) manufactured replacement frames. To ensure these replacement frames were not confused with new pistols, they were often serialized with the "HS" prefix but included an additional letter (like "HSR" or simply a non-standard sequence) or, more commonly, they used the original manufacturer's serial number restamped onto the replacement frame.
This article explains how military-style serial numbers are used on firearms such as Hi-Standards (often called Hi-Standard pistols) and similar models, clarifies legal and historical contexts, and outlines best practices for recordkeeping, compliance, and identification. It assumes the pistol model in question is a Hi-Standard Model "HD" or comparable Hi-Standard series (made by Hi-Standard Manufacturing Co., USA). If you meant a different “HiStandard” product, or a specific country’s military system, say so.
Unlike modern firearms that use strictly sequential numbers, Hi-Standard used letter prefixes to denote the model series. For the HD Military, the serial number location and format are your first indicators.
The most valuable HD Military pistols will have "U.S. PROPERTY" stamped on the left side of the frame, above the trigger guard. If it doesn’t have this, it is a commercial model or a post-war export return. The best examples have crisp, deep stamps that weren't buffed off during a arsenal refinish.
Values fluctuate based on condition (NIB, Excellent, Very Good, Good, Fair).
| Model Type | Serial Range Context | Approx. Value Range (Good Condition) | | :--- | :--- | :--- | | Civilian Model HD | Standard Serials | $450 - $650 | | U.S. Property (Blued) | Wartime Serials | $700 - $1,000+ | | U.S. Property (Parkerized) | Late Wartime/Transition | $900 - $1,300+ | | Match Target (Pre-War/Military) | Rare/Highly Specific | $1,500+ |
The "best" pistols are distinguished by their serial numbers. Unlike modern firearms, the Hi-Standard HD Military did not use a simple sequential count. The prefix and the number range tell you everything: the exact variant, the production year, and whether the gun retains its original military configuration.